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Showing 1–24 of 31 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Tamsulosin + placebo Clear all
Terminated Phase 4 Interventional Accepts healthy volunteers

Tamsulosin to Prevent Postoperative Urinary Retention in Laparoscopic Inguinal Hernia Repair

NCT04434378
View directory record Official record
Conditions
Post Operative Urinary Retention
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
Jewish Hospital, Cincinnati, Ohio
Other
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Hemodynamic Study of Avanafil and Two α-Adrenergic Blockers,Doxazosin and Tamsulosin

NCT01100021
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Tamsulosin and avanafil, Doxazosin and avanafil
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
40 Years to 65 Years · Male only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 6, 2011 · Synced Sep 29, 2026, 11:27 AM EDT
Terminated Phase 4 Interventional Results available

The Effect of Tamsulosin on Postoperative Urinary Retention

NCT04682366
View directory record Official record
Conditions
Urinary Retention
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
21 Years to 99 Years · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 30, 2024 · Synced Sep 29, 2026, 11:27 AM EDT
Terminated Not applicable Interventional Results available

Efficacy of Flomax to Improve Stone Passage Following Shock Wave Lithotripsy

NCT00209131
View directory record Official record
Conditions
Urolithiasis
Interventions
Flomax, Sugar pill
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 27, 2013 · Synced Sep 29, 2026, 11:27 AM EDT
Recruiting Phase 4 Interventional

Uroselective Alpha-1-Antagonist to Reduce the Incidence and Duration of Postoperative Urinary Retention Following Spine Surgery

NCT07174349
View directory record Official record
Conditions
Urinary Retention Postoperative
Interventions
Uroselective alpha-1-adrenergic receptor antagonist, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
35 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 29, 2026, 11:27 AM EDT
Terminated Phase 3 Interventional Results available

Trial of Prophylactic Tamsulosin for Postoperative Urinary Retention in Primary Total Hip and Knee Arthroplasty Patients

NCT02518971
View directory record Official record
Conditions
Postoperative Urinary Retention
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
University of Michigan
Other
Eligibility
35 Years and older · Male only
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 11, 2019 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 4 Interventional Results available

Decreasing Rates of Intraurethral Catheterization Postoperatively in Spine Surgery

NCT02919436
View directory record Official record
Conditions
Post-operative Urinary Retention
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
Anand Rughani, MD
Other
Eligibility
50 Years to 85 Years · Male only
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated Feb 16, 2022 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 1 Interventional

Treatment of Supine Hypertension in Autonomic Failure

NCT00223717
View directory record Official record
Conditions
Hypertension
Interventions
Clonidine, Nitroglycerin transdermal, Dipyridamole/ Aspirin (Aggrenox), Desmopressin (DDAVP), Sildenafil, Nifedipine, Hydralazine, Hydrochlorothiazide, Placebo, Bosentan, Diltiazem, Eplerenone, guanfacine, L-arginine, captopril, carbidopa, losartan, metoprolol tartrate, nebivolol hydrochloride, prazosin hydrochloride, tamsulosin hydrochloride, Head-up tilt., aliskiren, Local heat stress
Drug · Dietary Supplement · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 2 Interventional Results available

Pre-operative Tamsulosin and Time to Spontaneous Void After Hysterectomy

NCT04859660
View directory record Official record
Conditions
Urinary Retention Postoperative
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
Phoenix, Arizona • Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Not applicable Interventional Results available

Effect of Tamsulosin on Stone Expulsion and Pain Resolution in ED Patients With Ureterolithiasis

NCT00762424
View directory record Official record
Conditions
Kidney Stone
Interventions
Flowmax, placebo
Drug
Lead sponsor
WellSpan Health
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 16, 2014 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Tamsulosin vs Placebo to Prevent Postoperative Urinary Retention in Female Pelvic Reconstructive Surgery

NCT03524339
View directory record Official record
Conditions
Urinary Retention, Lower Urinary Tract Symptoms, Stress Urinary Incontinence, Pelvic Organ Prolapse
Interventions
Placebo oral capsule, Tamsulosin
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 7, 2021 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Study to Evaluate the Efficacy and Safety of Tamsulosin in Children With Neurogenic Bladder

NCT00796614
View directory record Official record
Conditions
Bladder, Neurogenic
Interventions
tamsulosin hydrochloride, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
2 Years to 16 Years
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
7
States / cities
Los Angeles, California • Tampa, Florida • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2015 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect of Preoperative Tamsulosin on Postoperative Urinary Retention

NCT05753670
View directory record Official record
Conditions
Postoperative Retention of Urine
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
179 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 2 Interventional Results available

Solifenacin Succinate With Tamsulosin HCl in Males With Lower Urinary Tract Symptoms and Bladder Outlet Obstruction

NCT00507455
View directory record Official record
Conditions
Lower Urinary Tract Symptoms, Bladder Outlet Obstruction
Interventions
solifenacin succinate, tamsulosin hydrochloride, Placebo to solifenacin, Placebo to tamsulosin
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
45 Years and older · Male only
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
17
States / cities
Homewood, Alabama • La Mesa, California • Long Beach, California + 14 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2014 · Synced Sep 29, 2026, 11:27 AM EDT
Terminated Phase 3 Interventional Results available

Use of Tamsulosin to Reduce the Incidence and Duration of Postoperative Urinary Retention Following Spine Surgery

NCT01568918
View directory record Official record
Conditions
Postoperative Urinary Retention
Interventions
Tamsulosin hydrochloride, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
35 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 29, 2024 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 4 Interventional

Effect and Safety Of Detrol LA In Men With Overactive Bladder Symptoms With Or Without Bladder Outlet Obstruction

NCT00147654
View directory record Official record
Conditions
Urinary Incontinence
Interventions
Tolterodine ER 4 mg QD, Tamsulosin 0.4 mg QD
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
40 Years and older · Male only
Enrollment
830 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
95
States / cities
Birmingham, Alabama • Homewood, Alabama • Tucson, Arizona + 92 more
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 4 Interventional Results available

Deprescribing Tamsulosin in Older Men

NCT05415748
View directory record Official record
Conditions
Benign Prostatic Hyperplasia, Lower Urinary Tract Symptoms
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years to 80 Years · Male only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 4 Interventional

A Study to Evaluate Solifenacin Succinate in Combination With Tamsulosin for the Treatment of Residual Overactive Bladder Symptoms (OAB) in Men.

NCT00333112
View directory record Official record
Conditions
Urinary Incontinence
Interventions
solifenacin succinate, tamsulosin, placebo
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
45 Years and older · Male only
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
74
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tuscon, Arizona + 67 more
Source: ClinicalTrials.gov public record
Updated Sep 17, 2014 · Synced Sep 29, 2026, 11:27 AM EDT
Not listed Phase 4 Interventional

Daily Versus Twice Per Day Tamsulosin for Ureteral Stent Symptoms

NCT03799120
View directory record Official record
Conditions
Ureteral Diseases
Interventions
Tamsulosin BID, Placebo
Drug · Other
Lead sponsor
Gundersen Lutheran Medical Foundation
Other
Eligibility
18 Years to 70 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 24, 2019 · Synced Sep 29, 2026, 11:27 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Impact of Tamsulosin on Post-Operative Urinary Retention Following Pelvic Reconstructive Surgery

NCT04597372
View directory record Official record
Conditions
Urinary Retention Postoperative
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
18 Years and older · Female only
Enrollment
154 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 4 Interventional Results available

Treatment of Symptoms After Stent Placement for Urinary Tract Obstruction

NCT01741454
View directory record Official record
Conditions
Ureteral Obstruction
Interventions
Tamsulosin, Tolterodine ER
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 9, 2019 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Preoperative Tamsulosin to Prevent Postoperative Urinary Retention After Surgery For Pelvic Floor Disorders

NCT04232683
View directory record Official record
Conditions
Urinary Retention
Interventions
Tamsulosin 0.4Mg Capsule, Placebo oral tablet
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 3 Interventional Results available

Prevention of Post-operative Urinary Retention

NCT02486653
View directory record Official record
Conditions
Urinary Retention, Urinary Tract Infections
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Sep 29, 2026, 11:27 AM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate the Efficacy, Safety, and Tolerability of Mirabegron in Men With OAB Symptoms While Taking Tamsulosin Hydrochloride for Lower Urinary Tract Symptoms (LUTS) Due to Benign Prostatic Hyperplasia (BPH)

NCT02757768
View directory record Official record
Conditions
Benign Prostatic Hyperplasia, Overactive Bladder
Interventions
Mirabegron, Placebo, Tamsulosin Hydrochloride
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
40 Years and older · Male only
Enrollment
715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
32
States / cities
Homewood, Alabama • Huntsville, Alabama • Anchorage, Alaska + 27 more
Source: ClinicalTrials.gov public record
Updated Nov 11, 2024 · Synced Sep 29, 2026, 11:27 AM EDT